SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Seated Height-Max:
1.45 mm
Supply Voltage-Max (Vsup):
12 V
Supply Voltage-Min (Vsup):
4.146 V
Surface Mount:
YES
Technology:
CMOS
Temp Coef of Voltage-Max:
6 ppm/°C
Temperature Grade:
MILITARY
Terminal Finish:
Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag)
Terminal Form:
GULL WING
Terminal Pitch:
0.95 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Trim/Adjustable Output:
NO
Width:
1.6 mm
REF3440MDBVTEP Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the REF34xx datasheet, which includes guidelines for component placement, trace routing, and thermal management. Following this layout can help minimize noise, ensure stability, and optimize performance.
The output capacitor value depends on the specific application, output voltage, and desired ripple voltage. A general rule of thumb is to use a capacitor with a value between 10uF to 47uF, with a voltage rating at least 2x the output voltage. Consult the datasheet and application notes for more specific guidance.
The REF3440 has an absolute maximum input voltage rating of 18V. However, the recommended operating input voltage range is 4.5V to 15.75V. Exceeding the maximum input voltage can damage the device.
Yes, the REF3440 is suitable for use as a voltage reference for an ADC. Its low noise, high accuracy, and low temperature coefficient make it an ideal choice for many ADC applications. However, ensure that the REF3440's output voltage is within the ADC's input range and that the REF3440's output current capability meets the ADC's requirements.
To ensure stability, follow the recommended PCB layout, use a suitable output capacitor, and ensure that the input voltage is within the recommended range. Additionally, avoid using long, unshielded traces, and keep the device away from high-frequency noise sources. If oscillation occurs, try adding a small capacitor (e.g., 10nF) between the output and ground.
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REF3440MDBVTEP Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
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